The Comparative Analysis :
BMW Z4 Roadster sDrive20i (13 - 16) vs. BMW Z4 Roadster sDrive28i (13 - 16)
€ 37,300
€ 44,300
€ 37,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 44,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of the Z4 Roadster sDrive20i and the Z4 Roadster sDrive28i are absolutely identical. Both are 4239 mm long, 1790 mm wide and 1291 mm tall.
Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
1291
1790
1951
1291
1790
1951
1790 mm
Width
1790 mm
1951 mm
Width Incl. Mirrors
1951 mm
1291 mm
Height
1291 mm
2496
4239
2496
4239
4239 mm
Length
4239 mm
2496 mm
Wheelbase
2496 mm
Vehicle Weight
Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
1470 kg
Kerb Weight
1475 kg
1725 kg
Gross Vehicle
Weight
Weight
1730 kg
Weight Difference:
5 kg
0.34 %
General
Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
E89
Generation
E89
Roadster
Car Body Style
Roadster
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
6-speed manual transmission
Transmission
6-speed manual transmission
Engine
Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
Straight-four petrol engine with turbocharger
Engine Type
Straight-four petrol engine with turbocharger
BMW N20
Engine Series
BMW N20
N20-B20
Engine Code
N20-B20
4
Valves
4
4
Cylinders
4
1997 CC
Engine Capacity
1997 CC
181 bhp
at 5000 rpm
Power
242 bhp
at 5000 rpm
Z4 Roadster sDrive20i
181 bhp
242 bhp
Z4 Roadster sDrive28i
270 NM
at 1250 rpm
Max. Torque
350 NM
at 1250 rpm
Z4 Roadster sDrive20i
270 NM
350 NM
Z4 Roadster sDrive28i
Performance
Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
146 mph
Maximum Speed
155 mph
6.9 sec
Acceleration 0 to 62 mph
5.7 sec
62 mph
62
mph
mph
96 m
0.000 sec
Z4 Roadster sDrive20i
62 mph
62
mph
mph
79 m
0.000 sec
Z4 Roadster sDrive28i
▶ REPLAY
8.12 kg/bhp
Weight-to-Power Ratio
6.1 kg/bhp
Z4 Roadster sDrive20i
8.12 kg/bhp
6.1 kg/bhp
Z4 Roadster sDrive28i
Fuel Economy / Emissions
Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
Fuel Economy
42 mpg
combined
42 mpg
Z4 Roadster sDrive20i
42 mpg
42 mpg
Z4 Roadster sDrive28i
32 mpg
city
31 mpg
No data
motorway
No data
55 L
Fuel Tank Capacity
55 L
503 mi
Range
503 mi
Z4 Roadster sDrive20i
503 mi
503 mi
Z4 Roadster sDrive28i
Environmental Impact
128.7 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
128.7 kWh
Z4 Roadster sDrive20i
128.7 kWh
128.7 kWh
Z4 Roadster sDrive28i
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
159 g/km (NEFZ)
CO2 Emissions
159 g/km (NEFZ)
Practical Convenience
Z4 Roadster sDrive20i
Z4 Roadster sDrive28i
2
Doors
2
2
No. of Seats
2
255 kg
Maximum Payload
255 kg
310 L
Boot Capacity
310 L
No data
Boot Capacity (Seats Down)
No data
